Don't switch because it's not a necessity. Stack crit out your ass. The breakpoint is for heroic raiding gear primarily. It can be hit with a lower ilvl while keeping a safe amount of crit, but just don't worry about it.
<27% crit and >10k rating means you have low int, i.e. I assume your gear is lacking (if it's not already apparent by lack of secondary stats)

Going for the breakpoint is big only when the stats are all almost there. i.e. if I reforge to pure crit for the 5k breakpoint, I will still end up with practically the exact same reforge I have now. Even though it's optimized around the 5k breakpoint, I'd still reach 10289 haste (because it is weighed stronger than mastery until 1s GCD @10293 or so)

It really bugs me that people talk about and consider having 5000 crit and 10.3k haste as being viable. IMO unless you're 540+ don't do it.

525 ilvl (depending on itemization can be worth it aswell)
Don't bring up random numbers in terms of gear. Allot of it depends on your itemization, and mostly for me. Getting the 10.2k haste breakpoint together with my Meta gem boosted my dps in ways you can't imagine.

540+ is way too late, by then he should stick at 8k haste reforged away from it, possibly with 18% hit or more due to excessive spirit.

From 525 onwards you can opt to go for it, best way still to see if it's a DPS increase is using wrathcalcs to determine said changes.

It really bugs me that people talk about and consider having 5000 crit and 10.3k haste as being viable. IMO unless you're 540+ don't do it.

There have been some questionable recommendations in the past as well for people to drop that much crit for a breakpoint. Too much fascination with breakpoints overall on this forum. It's much more important to understand what crit, haste, and mastery do for you as a balance druid, and gear appropriately for progress. In most scenarios this means full crit rating. Haste BPs are simply an added plus and something you should be aware of if you're gear naturally puts you close.

TLDR: No, you are sacrificing too much crit, especially if you are working on heroic bosses.